x1 = 0;
o1 = [0:.1:2];
y1 =(0.28 + (0.04 * o1) + (-0.04 * x1));
o = o1;
y=y1;

o1 = [2:.1:4];
y1 = (0.28 + (0.04 * x1) + (-0.04 * o1));

o = [o,o1];
y=[y,y1];

plot(o,y);

print -deps 'o1_b1true.pdf'

o1 = [0:.1:2];
y1 =(0.13 + (-0.001 * x1 * x1) + (0.002 * o1 * x1) + (-0.001 * o1 .* o1) + (0.001 * o1) + (0.001 * x1));
o = o1;
y=y1;

o1 = [2:.1:4];
y1 = (0.15 + (-0.002 * x1 * x1) + (0.004 * o1 * x1) + (-0.002 * o1 .* o1) + (0.002 * o1) + (0.002 * x1))

o = [o,o1];
y=[y,y1];

plot(o,y);

print -deps 'o1_b1false.pdf'